[J-u-boot.git] / common / serial.c

/*
 * (C) Copyright 2004
 * Wolfgang Denk, DENX Software Engineering, [email protected].
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <serial.h>
#include <devices.h>

DECLARE_GLOBAL_DATA_PTR;

static struct serial_device *serial_devices = NULL;
static struct serial_device *serial_current = NULL;

#if !defined(CONFIG_LWMON) && !defined(CONFIG_PXA27X)
struct serial_device *__default_serial_console (void)
{
#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
	return &serial_smc_device;
#elif defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
   || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
	return &serial_scc_device;
#elif defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
   || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
   || defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC83xx) \
   || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
#if defined(CONFIG_CONS_INDEX) && defined(CONFIG_SYS_NS16550_SERIAL)
#if (CONFIG_CONS_INDEX==1)
	return &eserial1_device;
#elif (CONFIG_CONS_INDEX==2)
	return &eserial2_device;
#elif (CONFIG_CONS_INDEX==3)
	return &eserial3_device;
#elif (CONFIG_CONS_INDEX==4)
	return &eserial4_device;
#else
#error "Bad CONFIG_CONS_INDEX."
#endif
#elif defined(CONFIG_UART1_CONSOLE)
		return &serial1_device;
#else
		return &serial0_device;
#endif
#elif defined(CONFIG_S3C2410)
#if defined(CONFIG_SERIAL1)
	return &s3c24xx_serial0_device;
#elif defined(CONFIG_SERIAL2)
	return &s3c24xx_serial1_device;
#elif defined(CONFIG_SERIAL3)
	return &s3c24xx_serial2_device;
#else
#error "CONFIG_SERIAL? missing."
#endif
#elif defined(CONFIG_OMAP3_ZOOM2)
		return ZOOM2_DEFAULT_SERIAL_DEVICE;
#else
#error No default console
#endif
}

struct serial_device *default_serial_console(void) __attribute__((weak, alias("__default_serial_console")));
#endif

int serial_register (struct serial_device *dev)
{
	dev->init += gd->reloc_off;
	dev->setbrg += gd->reloc_off;
	dev->getc += gd->reloc_off;
	dev->tstc += gd->reloc_off;
	dev->putc += gd->reloc_off;
	dev->puts += gd->reloc_off;

	dev->next = serial_devices;
	serial_devices = dev;

	return 0;
}

void serial_initialize (void)
{
#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
	serial_register (&serial_smc_device);
#endif
#if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
 || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
	serial_register (&serial_scc_device);
#endif

#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
 || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
 || defined(CONFIG_MPC5xxx)
	serial_register(&serial0_device);
	serial_register(&serial1_device);
#endif

#if defined(CONFIG_SYS_NS16550_SERIAL)
#if defined(CONFIG_SYS_NS16550_COM1)
	serial_register(&eserial1_device);
#endif
#if defined(CONFIG_SYS_NS16550_COM2)
	serial_register(&eserial2_device);
#endif
#if defined(CONFIG_SYS_NS16550_COM3)
	serial_register(&eserial3_device);
#endif
#if defined(CONFIG_SYS_NS16550_COM4)
	serial_register(&eserial4_device);
#endif
#endif /* CONFIG_SYS_NS16550_SERIAL */
#if defined (CONFIG_FFUART)
	serial_register(&serial_ffuart_device);
#endif
#if defined (CONFIG_BTUART)
	serial_register(&serial_btuart_device);
#endif
#if defined (CONFIG_STUART)
	serial_register(&serial_stuart_device);
#endif
#if defined(CONFIG_S3C2410)
	serial_register(&s3c24xx_serial0_device);
	serial_register(&s3c24xx_serial1_device);
	serial_register(&s3c24xx_serial2_device);
#endif
	serial_assign (default_serial_console ()->name);
}

void serial_devices_init (void)
{
	device_t dev;
	struct serial_device *s = serial_devices;

	while (s) {
		memset (&dev, 0, sizeof (dev));

		strcpy (dev.name, s->name);
		dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;

		dev.start = s->init;
		dev.putc = s->putc;
		dev.puts = s->puts;
		dev.getc = s->getc;
		dev.tstc = s->tstc;

		device_register (&dev);

		s = s->next;
	}
}

int serial_assign (char *name)
{
	struct serial_device *s;

	for (s = serial_devices; s; s = s->next) {
		if (strcmp (s->name, name) == 0) {
			serial_current = s;
			return 0;
		}
	}

	return 1;
}

void serial_reinit_all (void)
{
	struct serial_device *s;

	for (s = serial_devices; s; s = s->next) {
		s->init ();
	}
}

int serial_init (void)
{
	if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
		struct serial_device *dev = default_serial_console ();

		return dev->init ();
	}

	return serial_current->init ();
}

void serial_setbrg (void)
{
	if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
		struct serial_device *dev = default_serial_console ();

		dev->setbrg ();
		return;
	}

	serial_current->setbrg ();
}

int serial_getc (void)
{
	if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
		struct serial_device *dev = default_serial_console ();

		return dev->getc ();
	}

	return serial_current->getc ();
}

int serial_tstc (void)
{
	if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
		struct serial_device *dev = default_serial_console ();

		return dev->tstc ();
	}

	return serial_current->tstc ();
}

void serial_putc (const char c)
{
	if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
		struct serial_device *dev = default_serial_console ();

		dev->putc (c);
		return;
	}

	serial_current->putc (c);
}

void serial_puts (const char *s)
{
	if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
		struct serial_device *dev = default_serial_console ();

		dev->puts (s);
		return;
	}

	serial_current->puts (s);
}
Commit	Line	Data
281e00a3 WD	1	/*
	2	* (C) Copyright 2004
	3	* Wolfgang Denk, DENX Software Engineering, [email protected].
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#include <common.h>
	25	#include <serial.h>
	26	#include <devices.h>
	27
d87080b7 WD	28	DECLARE_GLOBAL_DATA_PTR;
d87080b7 WD	29
281e00a3 WD	30	static struct serial_device *serial_devices = NULL;
	31	static struct serial_device *serial_current = NULL;
	32
80172c61	33	#if !defined(CONFIG_LWMON) && !defined(CONFIG_PXA27X)
1208a2df	34	struct serial_device *__default_serial_console (void)
281e00a3 WD	35	{
	36	#if defined(CONFIG_8xx_CONS_SMC1) \|\| defined(CONFIG_8xx_CONS_SMC2)
	37	return &serial_smc_device;
	38	#elif defined(CONFIG_8xx_CONS_SCC1) \|\| defined(CONFIG_8xx_CONS_SCC2) \
	39	\|\| defined(CONFIG_8xx_CONS_SCC3) \|\| defined(CONFIG_8xx_CONS_SCC4)
	40	return &serial_scc_device;
ff36fd85	41	#elif defined(CONFIG_405GP) \|\| defined(CONFIG_405CR) \|\| defined(CONFIG_440) \
dbbd1257	42	\|\| defined(CONFIG_405EP) \|\| defined(CONFIG_405EZ) \|\| defined(CONFIG_405EX) \
039594a4 PA	43	\|\| defined(CONFIG_MPC5xxx) \|\| defined(CONFIG_MPC83xx) \
039594a4 PA	44	\|\| defined(CONFIG_MPC85xx) \|\| defined(CONFIG_MPC86xx)
6d0f6bcf	45	#if defined(CONFIG_CONS_INDEX) && defined(CONFIG_SYS_NS16550_SERIAL)
0fd30252 WD	46	#if (CONFIG_CONS_INDEX==1)
	47	return &eserial1_device;
	48	#elif (CONFIG_CONS_INDEX==2)
	49	return &eserial2_device;
	50	#elif (CONFIG_CONS_INDEX==3)
	51	return &eserial3_device;
	52	#elif (CONFIG_CONS_INDEX==4)
	53	return &eserial4_device;
	54	#else
	55	#error "Bad CONFIG_CONS_INDEX."
	56	#endif
	57	#elif defined(CONFIG_UART1_CONSOLE)
6c5879f3 MB	58	return &serial1_device;
	59	#else
	60	return &serial0_device;
	61	#endif
a7c185ed HW	62	#elif defined(CONFIG_S3C2410)
	63	#if defined(CONFIG_SERIAL1)
	64	return &s3c24xx_serial0_device;
	65	#elif defined(CONFIG_SERIAL2)
	66	return &s3c24xx_serial1_device;
	67	#elif defined(CONFIG_SERIAL3)
	68	return &s3c24xx_serial2_device;
	69	#else
	70	#error "CONFIG_SERIAL? missing."
	71	#endif
660888b7 TR	72	#elif defined(CONFIG_OMAP3_ZOOM2)
660888b7 TR	73	return ZOOM2_DEFAULT_SERIAL_DEVICE;
281e00a3 WD	74	#else
	75	#error No default console
	76	#endif
	77	}
1208a2df MF	78
1208a2df MF	79	struct serial_device *default_serial_console(void) __attribute__((weak, alias("__default_serial_console")));
281e00a3 WD	80	#endif
281e00a3 WD	81
80172c61	82	int serial_register (struct serial_device *dev)
281e00a3	83	{
281e00a3 WD	84	dev->init += gd->reloc_off;
	85	dev->setbrg += gd->reloc_off;
	86	dev->getc += gd->reloc_off;
	87	dev->tstc += gd->reloc_off;
	88	dev->putc += gd->reloc_off;
	89	dev->puts += gd->reloc_off;
	90
	91	dev->next = serial_devices;
	92	serial_devices = dev;
	93
	94	return 0;
	95	}
	96
2ee66533	97	void serial_initialize (void)
281e00a3 WD	98	{
281e00a3 WD	99	#if defined(CONFIG_8xx_CONS_SMC1) \|\| defined(CONFIG_8xx_CONS_SMC2)
2ee66533	100	serial_register (&serial_smc_device);
281e00a3 WD	101	#endif
	102	#if defined(CONFIG_8xx_CONS_SCC1) \|\| defined(CONFIG_8xx_CONS_SCC2) \
	103	\|\| defined(CONFIG_8xx_CONS_SCC3) \|\| defined(CONFIG_8xx_CONS_SCC4)
2ee66533	104	serial_register (&serial_scc_device);
281e00a3 WD	105	#endif
281e00a3 WD	106
ff36fd85	107	#if defined(CONFIG_405GP) \|\| defined(CONFIG_405CR) \|\| defined(CONFIG_440) \
dbbd1257 SR	108	\|\| defined(CONFIG_405EP) \|\| defined(CONFIG_405EZ) \|\| defined(CONFIG_405EX) \
dbbd1257 SR	109	\|\| defined(CONFIG_MPC5xxx)
ff36fd85 WD	110	serial_register(&serial0_device);
	111	serial_register(&serial1_device);
	112	#endif
	113
6d0f6bcf JCPV	114	#if defined(CONFIG_SYS_NS16550_SERIAL)
6d0f6bcf JCPV	115	#if defined(CONFIG_SYS_NS16550_COM1)
0fd30252 WD	116	serial_register(&eserial1_device);
0fd30252 WD	117	#endif
6d0f6bcf	118	#if defined(CONFIG_SYS_NS16550_COM2)
0fd30252 WD	119	serial_register(&eserial2_device);
0fd30252 WD	120	#endif
6d0f6bcf	121	#if defined(CONFIG_SYS_NS16550_COM3)
0fd30252 WD	122	serial_register(&eserial3_device);
0fd30252 WD	123	#endif
6d0f6bcf	124	#if defined(CONFIG_SYS_NS16550_COM4)
0fd30252 WD	125	serial_register(&eserial4_device);
0fd30252 WD	126	#endif
6d0f6bcf	127	#endif /* CONFIG_SYS_NS16550_SERIAL */
80172c61 SB	128	#if defined (CONFIG_FFUART)
	129	serial_register(&serial_ffuart_device);
	130	#endif
	131	#if defined (CONFIG_BTUART)
	132	serial_register(&serial_btuart_device);
	133	#endif
	134	#if defined (CONFIG_STUART)
	135	serial_register(&serial_stuart_device);
a7c185ed HW	136	#endif
	137	#if defined(CONFIG_S3C2410)
	138	serial_register(&s3c24xx_serial0_device);
	139	serial_register(&s3c24xx_serial1_device);
	140	serial_register(&s3c24xx_serial2_device);
80172c61	141	#endif
2ee66533	142	serial_assign (default_serial_console ()->name);
281e00a3 WD	143	}
281e00a3 WD	144
2ee66533	145	void serial_devices_init (void)
281e00a3 WD	146	{
	147	device_t dev;
	148	struct serial_device *s = serial_devices;
	149
2ee66533	150	while (s) {
281e00a3 WD	151	memset (&dev, 0, sizeof (dev));
	152
	153	strcpy (dev.name, s->name);
	154	dev.flags = DEV_FLAGS_OUTPUT \| DEV_FLAGS_INPUT;
	155
	156	dev.start = s->init;
	157	dev.putc = s->putc;
	158	dev.puts = s->puts;
	159	dev.getc = s->getc;
	160	dev.tstc = s->tstc;
	161
	162	device_register (&dev);
	163
	164	s = s->next;
	165	}
	166	}
	167
2ee66533	168	int serial_assign (char *name)
281e00a3 WD	169	{
	170	struct serial_device *s;
	171
2ee66533 WD	172	for (s = serial_devices; s; s = s->next) {
2ee66533 WD	173	if (strcmp (s->name, name) == 0) {
281e00a3 WD	174	serial_current = s;
	175	return 0;
	176	}
	177	}
	178
	179	return 1;
	180	}
	181
2ee66533	182	void serial_reinit_all (void)
281e00a3 WD	183	{
	184	struct serial_device *s;
	185
2ee66533 WD	186	for (s = serial_devices; s; s = s->next) {
2ee66533 WD	187	s->init ();
281e00a3 WD	188	}
	189	}
	190
2ee66533	191	int serial_init (void)
281e00a3	192	{
2ee66533 WD	193	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	194	struct serial_device *dev = default_serial_console ();
	195
	196	return dev->init ();
281e00a3 WD	197	}
281e00a3 WD	198
2ee66533	199	return serial_current->init ();
281e00a3 WD	200	}
281e00a3 WD	201
2ee66533	202	void serial_setbrg (void)
281e00a3	203	{
2ee66533 WD	204	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	205	struct serial_device *dev = default_serial_console ();
	206
	207	dev->setbrg ();
281e00a3 WD	208	return;
	209	}
	210
2ee66533	211	serial_current->setbrg ();
281e00a3 WD	212	}
281e00a3 WD	213
2ee66533	214	int serial_getc (void)
281e00a3	215	{
2ee66533 WD	216	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	217	struct serial_device *dev = default_serial_console ();
	218
	219	return dev->getc ();
281e00a3 WD	220	}
281e00a3 WD	221
2ee66533	222	return serial_current->getc ();
281e00a3 WD	223	}
281e00a3 WD	224
2ee66533	225	int serial_tstc (void)
281e00a3	226	{
2ee66533 WD	227	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	228	struct serial_device *dev = default_serial_console ();
	229
	230	return dev->tstc ();
281e00a3 WD	231	}
281e00a3 WD	232
2ee66533	233	return serial_current->tstc ();
281e00a3 WD	234	}
281e00a3 WD	235
2ee66533	236	void serial_putc (const char c)
281e00a3	237	{
2ee66533 WD	238	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	239	struct serial_device *dev = default_serial_console ();
	240
	241	dev->putc (c);
281e00a3 WD	242	return;
	243	}
	244
2ee66533	245	serial_current->putc (c);
281e00a3 WD	246	}
281e00a3 WD	247
2ee66533	248	void serial_puts (const char *s)
281e00a3	249	{
2ee66533 WD	250	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	251	struct serial_device *dev = default_serial_console ();
	252
	253	dev->puts (s);
281e00a3 WD	254	return;
	255	}
	256
2ee66533	257	serial_current->puts (s);
281e00a3	258	}